Experts Since 1965

Commercial Waterproofing Contractors Sanford FL

Lamphier & Company delivers commercial waterproofing services in Sanford and throughout Seminole County. With 60 years of building science expertise, our state-certified contractors protect schools, municipal facilities, and commercial properties from moisture damage. We solve water intrusion problems that other contractors overlook, using in-house crews and a building science approach that gets to the root cause of every issue.

Our Comprehensive Sanford Waterproofing Services

We handle the full range of commercial waterproofing needs for Sanford area facilities:

  • Foundation waterproofing for below-grade walls and slabs
  • Plaza deck and parking garage waterproofing with traffic-bearing membranes
  • Building envelope waterproofing including walls, joints, and penetrations
  • Roof waterproofing systems that integrate with our roof coating services
  • Expansion joint and sealant replacement to restore weather barriers

Each project starts with our Lamphier ProGuard® Process, a systematic approach that diagnoses the actual source of water intrusion before recommending solutions.

Commercial Waterproofing Project at Seminole Courthouse with a Lamphier & Company Boom van aside the building

Our Contractor Certifications

CGC058168

State Certified General Contractor

CCC057695

State Certified Roofing Contractor

Sanford and Seminole County Areas We Serve

Our crews provide waterproofing services throughout Sanford and Seminole County. We serve facilities near Lake Monroe, commercial properties along US-17/92, and buildings throughout Historic Downtown Sanford. Our team also works in Lake Mary, Heathrow, Longwood, and Altamonte Springs. Whether your property is near Seminole Town Center or closer to Orlando Sanford International Airport, we respond quickly to moisture emergencies and scheduled projects alike. We cover orange county too.

Downton Sanford FL View By Lamphier & Company celebrating their 60+ years of Sanford waterproofing service

The Lamphier Difference

Most contractors apply products. We investigate problems first. Using moisture diagnostics and thermal imaging, we trace water to its actual entry point before recommending solutions. Our in-house crews and foremen with 30+ years experience ensure consistent quality on every Orlando waterproofing project. The Lamphier ProGuard Process ensures proper inspection, consultation, and execution on every project we take.

Proven Results with Sanford Facilities

Facility directors and property managers throughout Seminole County rely on Lamphier & Company for results they can count on.

Our work protecting Seminole County government facilities speaks for itself. Projects like the Seminole County Transfer Station demonstrate how we solve complex challenges that other contractors struggle with. That project required specialized surface preparation and protective coatings in an extremely demanding environment, completed overnight without disrupting daily operations.

See what our clients say about working with us:

What Our Clients Say?

Jeromy Mynes

Seminole County Leisure Service Department

I wanted to express my gratitude, Mr. Lamphier. Thank you for continuing to share your expertise and time with Seminole County Leisure Service Department. I appreciate all that you do for us and the professional manner to which your employees adhere.

Bob Lucie

Assistant Director of Engineering South Seminole Community Hospital

“Given the special challenges involved in working at a hospital we have found the Lamphier Family to be exemplary in working around patients, scheduling, etc. Their workmanship is of the highest quality, and always completed on time. We have an ongoing relationship with Lamphier Painting Services and without any reservation would recommend them to anyone in need of their services. They are experienced painters with excellent work ethics and it shows.”

Success Stories

Seminole County Transfer Station

Frequently Asked Questions

Work with Us

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